i can't remember the brands in particular, but it seems that with diving/snorkeling gear, you get what you pay for...
though sometimes k-mart has stuff that is worth buying as a spare...

assuming you buy decent gear, rather than brand, fit is the most important factor (eg. masks, wetsuits, fins) - eg a really good brand/expensive mask is useless if it doesnt fit your face (i know, i have a weird face)

there are occasional bargains to be had from anaconda (and they have a good range) and dive shops are (generally) really $$$

hairy